package db;

import java.util.Date;
import java.util.List;
import org.hibernate.LockMode;
import org.hibernate.Query;
import org.hibernate.criterion.Example;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/**
 * A data access object (DAO) providing persistence and search support for Bid
 * entities. Transaction control of the save(), update() and delete() operations
 * can directly support Spring container-managed transactions or they can be
 * augmented to handle user-managed Spring transactions. Each of these methods
 * provides additional information for how to configure it for the desired type
 * of transaction control.
 * 
 * @see db.Bid
 * @author MyEclipse Persistence Tools
 */

public class BidDAO extends BaseHibernateDAO {
	private static final Logger log = LoggerFactory.getLogger(BidDAO.class);
	// property constants
	public static final String _BTYPE = "BType";
	public static final String _BSTATUS = "BStatus";
	public static final String _BDESCRIPTION = "BDescription";

	public void save(Bid transientInstance) {
		log.debug("saving Bid instance");
		try {
			getSession().save(transientInstance);
			log.debug("save successful");
		} catch (RuntimeException re) {
			log.error("save failed", re);
			throw re;
		}
	}

	public void delete(Bid persistentInstance) {
		log.debug("deleting Bid instance");
		try {
			getSession().delete(persistentInstance);
			log.debug("delete successful");
		} catch (RuntimeException re) {
			log.error("delete failed", re);
			throw re;
		}
	}

	public Bid findById(java.lang.Integer id) {
		log.debug("getting Bid instance with id: " + id);
		try {
			Bid instance = (Bid) getSession().get("db.Bid", id);
			return instance;
		} catch (RuntimeException re) {
			log.error("get failed", re);
			throw re;
		}
	}

	public List findByExample(Bid instance) {
		log.debug("finding Bid instance by example");
		try {
			List results = getSession().createCriteria("db.Bid").add(
					Example.create(instance)).list();
			log.debug("find by example successful, result size: "
					+ results.size());
			return results;
		} catch (RuntimeException re) {
			log.error("find by example failed", re);
			throw re;
		}
	}

	public List findByProperty(String propertyName, Object value) {
		log.debug("finding Bid instance with property: " + propertyName
				+ ", value: " + value);
		try {
			String queryString = "from Bid as model where model."
					+ propertyName + "= ?";
			Query queryObject = getSession().createQuery(queryString);
			queryObject.setParameter(0, value);
			return queryObject.list();
		} catch (RuntimeException re) {
			log.error("find by property name failed", re);
			throw re;
		}
	}

	public List findByBType(Object BType) {
		return findByProperty(_BTYPE, BType);
	}

	public List findByBStatus(Object BStatus) {
		return findByProperty(_BSTATUS, BStatus);
	}

	public List findByBDescription(Object BDescription) {
		return findByProperty(_BDESCRIPTION, BDescription);
	}

	public List findAll() {
		log.debug("finding all Bid instances");
		try {
			String queryString = "from Bid";
			Query queryObject = getSession().createQuery(queryString);
			return queryObject.list();
		} catch (RuntimeException re) {
			log.error("find all failed", re);
			throw re;
		}
	}

	public Bid merge(Bid detachedInstance) {
		log.debug("merging Bid instance");
		try {
			Bid result = (Bid) getSession().merge(detachedInstance);
			log.debug("merge successful");
			return result;
		} catch (RuntimeException re) {
			log.error("merge failed", re);
			throw re;
		}
	}

	public void attachDirty(Bid instance) {
		log.debug("attaching dirty Bid instance");
		try {
			getSession().saveOrUpdate(instance);
			log.debug("attach successful");
		} catch (RuntimeException re) {
			log.error("attach failed", re);
			throw re;
		}
	}

	public void attachClean(Bid instance) {
		log.debug("attaching clean Bid instance");
		try {
			getSession().lock(instance, LockMode.NONE);
			log.debug("attach successful");
		} catch (RuntimeException re) {
			log.error("attach failed", re);
			throw re;
		}
	}
}